The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Apr. 11, 2008
Tadashi Chiba, Tokyo, JP;
Tadashi Chiba, Tokyo, JP;
Oki Semiconductor Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a semiconductor device which is capable of preventing operation of the signal processing part from being unstable due to light not blocked by the light blocking layer by being obliquely incident on the signal processing part and preventing the operation of the signal processing part from being unstable due to stray charges occurring by light with which the light blocking layer is irradiated. In a light-incident parthaving a light receiving elementand a signal processing circuitthat processes an output signal from the light receiving element, which are formed on a SOI substrate, a plurality of contact plugselectrically connected to the light blocking layerare laminated in the thickness direction of the SOI substrate along an edge of the light blocking layer that blocks the sunlight, with the uppermost of wiring layers on the signal processing circuitas the light blocking layer. The plurality of contact plugshave a ground or a potential sufficient to draw out stray charges occurring in the light blocking layer.